Fatal error: Uncaught Error: Class 'Symfony\Component\Cache\Adapter\AbstractAdapter' not found in C:\Apache24\htdocs\cwbts\vendor\symfony\cache\Adapter\FilesystemAdapter.php:19 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\cwbts\vendor\symfony\cache\Adapter\FilesystemAdapter.php on line 19